This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

Furniture tries to escape an abandoned building in San Francisco.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

An enormous illuminated figure dances on the Las Vegas strip.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

This 19th-century church is now a popular roller rink.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Its buzzing collection honors vibrator history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A winding path built in secret on the edge of the continent.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.